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Finding the Fourth Proportional to 18,597.72, 27,906.48 and 8,737.14

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Solution

The fourth proportional to 18,597.72, 27,906.48 and 8,737.14 is: 13,110.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,597.72 : 27,906.48 = 8,737.14 : x
  2. Step 2: Convert to fraction form
    18,597.72/27,906.48 = 8,737.14/x
  3. Step 3: Cross multiply
    18,597.72x = 27,906.48 × 8,737.14
  4. Step 4: Simplify right side
    18,597.72x = 243,822,822.67
  5. Step 5: Solve for x
    x = 243,822,822.67/18,597.72
  6. Step 6: Final answer
    x = 13,110.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.